Posts Tagged ‘Lake Stevens’

A Question from Burlington: What Does a Furnace Fan Limit Switch Do?

Monday, December 19th, 2011

When researching your Burlington home’s furnace and potential problems it might have, you’ve probably run across a few references to the fan limit switch. And while you know that it can break in a number of ways, do you know what the switch does and what you should look for when checking your furnace its air handler for problems?

What the Limit Switch Does

To put it very simply, the furnace fan limit switch is a control that tells your furnace’s fan when to turn on and off. So, when the furnace isn’t on, it tells the blower not to operate (and send cold air into your home) and when the furnace is on, it tells the blower to turn on and start circulating the warm air.

While the primary function of the limit switch is to turn the blower fan on and off, it also has a safety role. When the temperature in the air supply plenum gets too hot, the limit switch turns off the furnace boiler to keep there from being any damage from overheating. This is handy if there is a blockage in the air vents or the controls are messed up due to water damage or improper adjustments to the settings.

Looking for Problems

Most of the time, when there is an issue with your furnace turning off or on frequently, the limit switch is one of the first things you will check. Because the switch is electronic and is attached to a thermostat which measures temperature in the air supply plenum, a small problem can result in it not working properly. So, you can easily check it by temporarily bypassing the switch and seeing if your device turns on or off properly.

In many cases, if the limit switch is the problem, you will still need to call a professional for replacement, but you can avoid a lot of headaches related to tracking down the source of the problem. If you suspect a limit switch problem, make sure to call someone immediately, because it does provide an important safety function and because without it your furnace won’t cycle on and off properly.

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Black Diamond Heating Tip: Signs of an Oversized Furnace

Wednesday, December 14th, 2011

Most people, when they choose a new furnace in Black Diamond, think that “bigger is better”. However, an oversized furnace can present just as many if not more problems than an undersized furnace. So, if you feel you may have overdone it in the past or you want to avoid making a mistake in the future, here are some signs that your furnace may be oversized.

Short Cycling

The most common sign of oversizing is short cycling. Short cycling occurs when your furnace turns on and off frequently because it reaches the thermostat setting so fast. Basically, your furnace is so powerful that it can produce what you need rapidly and then shuts off. But, because it does this, the temperature in your home is likely to cool much faster as well since the furnace isn’t on all the time.

Additionally, the on and off short cycling has a negative effect on your furnace, causing excess wear and tear on the system and eventually leading to extra repairs and in some cases early replacement.

High and Low Temperatures

When your furnace is turned on for a comfortable indoor temperature like 70 degrees F, the high and low temperature between cycles should be relatively close to that temperature. In an ideal situation, you shouldn’t even notice a fluctuation.

So, if the high temperature gets close to 75 degrees F and the low temperature is around 66 degrees F, you have a furnace much too large for the size of your home.

Furnace Room Issues

You might find that the space and exhaust given for the furnace are not sufficient either, especially if your previous furnace was replaced with this oversized unit. Backflow of a gas or oil smell or excess heat in and near your furnace room are both common signs that the furnace is much too large.

So, what should you do about your oversized furnace? If you have had that furnace for some time or just moved into a new home, it’s a good idea to have a new one installed. Have a proper load calculation done and then get a new furnace installed so you don’t have to worry about the system cycling on and off so often. If it’s a newer unit, call your technician and discuss possible options to reduce the negative effects of the miscalculation of its size.

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Is Your Heat Pump Malfunctioning? A Tip from North Bend

Friday, December 2nd, 2011

In a perfect world, you would never have to worry about things like malfunctions or repairs in North Bend. Everything would just work without ever needing to be maintained or fixed, and you could spend your time on energy on more enjoyable pursuits.

Unfortunately, no such perfect world exists. Things wear out and break down, often at the least opportune time. And of course, your heat pump is not immune. Despite being a great all around machine, a heat pump can malfunction, just like anything else.

But how can you know whether your heat pump is not working right? Here are some signs and symptoms that are often indicative of common heat pump problems:

  1. Too Much Noise – Whether emanating from your car or your usually quiet heat pump, noises are often the first sign that something is amiss. You should expect your heat pump to make some noise; the compressor and air handler are two culprits. However, if it starts making more noise than it did before, something may be up. Sometimes this is as simple as some loose fittings, but it’s still something that should be checked out.
  2. The House Is Too Cold – Obviously, if you get a heat pump to heat your house, you expect it to do just that. So, if your home is too chilly, you know something is amiss. If it’s way too cold, the heat pump may not be running at all, which can be the result of a serious malfunction. If it is only a few degrees below where you set it, it may be a different problem. It could be that something is malfunctioning in the heat pump, but it could also be that the outside air is too cold for the heat pump to keep the house warm. In that case, the best solution is supplemental heating.
  3. The Heat Pump Turns Off Too Soon – If your heat pump seems to be shutting off too quickly, it may be short cycling. That means that it is turning off before getting through its entire heating or cooling cycle. Frequently this is simply caused by dirt or debris around the outdoor coil, in the air handler or in the filter. Check these areas out and clean them. In general, you will want to keep the various components of your heat pump clean in order to ensure the best performance.

These are just some of the main symptoms of common problems. Other things can go wrong with your heat pump, although it is not very likely. As a general rule, if you notice your heat pump performing strangely or doing something it hasn’t done before, it’s best to get it checked out by a professional.

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Energy Efficient Home Cooling Tips From Lake Stevens

Wednesday, August 24th, 2011

Having an energy efficient air conditioning system in place is a great way to keep cool in the summer for less in Lake Stevens. But that is far from the only thing you can do to help reduce your energy bills throughout the hottest months of the year. In fact, there are several simple steps you can take to start cutting down on your cooling costs right now and lighten the cooling load that your air conditioning system has to bear.

One of the main things to remember when you are trying to keep your house cool is that every door and window is potentially letting in warmer air from outside and letting the cooler indoor air escape. You can cut down on this considerably if you simply take the time to seal up these access points and any others you are able to find.

Putting up plastic over unused doors and windows and checking all areas of the house for drafts and adequate insulation will dramatically reduce the cost of keeping your house cool in the summer. Also, you can keep the sun from warming up your indoor air by drawing the blinds, particularly on those windows that let in the hot afternoon sun.

Putting up light colored siding and reflective roofing will also do a great deal to keep your overall cooling costs down. That is because these materials are able to direct the heat of the sun away from your house rather than letting it be absorbed so that it can heat up the inside. The vast majority of the heat that your air conditioning system has to remove from your house comes in through your roof and walls, so blocking this access point is extremely helpful in keeping your overall cooling costs down.

All of these are steps you can take to reduce the total cooling load that your air conditioning system has to deal with. But if you want your system to continue to function at peak energy efficiency, you will have to take care of it as well.

This typically means having someone come in once a year to perform a thorough inspection and maintenance of your air conditioning system and to clean out any debris that may have accumulated over time. Having this done will make it possible for your air conditioner to continue to function at the highest possible levels of energy efficiency for years to come.

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What Is SEER? A Question From Gig Harbor

Monday, August 1st, 2011

If you’ve been looking at air conditioners in Gig Harbor, you’ve probably noticed that they all seem to have a SEER rating. But what does this actually mean?

The SEER, which stands for Seasonal Energy Efficiency Ratio, is a measure of how energy efficient a particular air conditioning model is. So when you’re shopping around for the best deal on an air conditioner for your home, this is something you’ll absolutely want to pay attention to.

Interpreting SEER Ratings

The SEER rating system is relatively simple – the higher the SEER, the more energy efficient the product. But because a higher price tag typically comes with a higher SEER rating, it’s important to know just how much more efficient a higher rated unit will be. It helps you decide whether paying significantly more for a higher rated unit is worth it in long term savings. Will it actually save you enough each month to make up for the difference in price?

Evaluating Your Energy Usage

A big factor here is how much you will use your air conditioner. If you live in a place with very hot and humid summers where the air conditioning runs constantly, you’re probably best off with the highest SEER you can find. When you consume that much energy to keep your home cool, you want to get as much as possible out of it, and that’s what a high SEER model can do for you.

On the other hand, if you live in an area that doesn’t have the harshest summers, you may be better off with a slightly less efficient (and therefore cheaper) model. Keep in mind, too, that the actual percentage increase in energy efficiency goes up by smaller and smaller increments the higher in SEER ratings you get. For instance, while a 10 SEER unit may be almost 20% more efficient than an 8 SEER model, a 12 SEER is only about 10% more efficient than that 10 SEER.

Finding the Right Balance

The best way to decide what SEER rating is best for you is to determine the annual cooling costs with your current unit and then calculate your savings in dollars based on the percentage each model would improve your efficiency. If you don’t currently have an air conditioner, this can be a bit tricky, but a professional contractor or air conditioning salesman can help you estimate your total monthly cooling costs with the various units.

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